CN114606361A - Rare earth magnesium feeding control system and method for high-speed steel production process - Google Patents
Rare earth magnesium feeding control system and method for high-speed steel production process Download PDFInfo
- Publication number
- CN114606361A CN114606361A CN202210135773.5A CN202210135773A CN114606361A CN 114606361 A CN114606361 A CN 114606361A CN 202210135773 A CN202210135773 A CN 202210135773A CN 114606361 A CN114606361 A CN 114606361A
- Authority
- CN
- China
- Prior art keywords
- conveying pipe
- conveying
- rare earth
- pipe
- wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
- C21C7/0645—Agents used for dephosphorising or desulfurising
Abstract
The invention provides a rare earth magnesium feeding control system and a method for a high-speed steel production process, wherein a sampling detection pipe is communicated with the bottom of a crystallizer, and a plurality of groups of second conveying pipes and first conveying pipes are arranged; the angle of the second conveying pipe relative to the first conveying pipe can be adjusted; judging by the controller according to the sampling detection result of the sampling detection pipe so as to correspondingly adjust the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe; therefore, the number of the wire feeding, the wire feeding angle and the wire feeding speed are respectively adjusted correspondingly according to different sampling detection results, the improvement of the high-speed steel solidification structure and the mechanical property is realized, and meanwhile, the phenomena that the work efficiency is influenced by the fact that the adjustment speed is too slow and the like possibly existing in a single adjustment mode and the performance is not improved due to the fact that the adjustment speed is too fast are avoided.
Description
Technical Field
The invention relates to a technology for processing high-speed steel by rare earth magnesium, in particular to a rare earth magnesium feeding control system and a method for a high-speed steel production process.
Background
The research result of rare earth magnesium (CeMg) processing technology for high-speed steel shows that the single nonmetallic inclusion in the steel is mainly two deoxidation products Ce of Ce2O3And Ce2O2S, is fine in size, about 1 μm, and is spheroidal in shape. Compared with the treatment without rare earth magnesium, the average diameter and the average area of the nonmetallic inclusion are reduced to a certain degree, the average diameter of the nonmetallic inclusion in the steel is reduced by 45 percent, and the average area is reduced by 53 percent. The calculation analysis result shows that the rare earth magnesium has better capability of removing and controlling O, S content in the material, and the combination experiment analysis result shows that the generated non-metallic inclusion is easy to grow and generates large-particle non-metallic inclusion due to the good combination capability of the rare earth magnesium and O, S.
In addition, with the increase of the content of the rare earth magnesium, the structure of the reticular carbide in the as-cast steel is continuously improved, the carbide is gradually converted from a reticular shape to a fishbone shape and a thin rod shape, and a plurality of spherical carbides which are finely dispersed and distributed appear, so that the content of the whole carbide is reduced.
Therefore, how to realize reasonable feeding control of rare earth magnesium in the process of high-speed steel production technology to facilitate the improvement of high-speed steel solidification structure and mechanical property is a technical problem to be solved urgently at present.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a rare earth magnesium feeding control system and a method for a high-speed steel production process.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a rare earth magnesium feeding control system for a high-speed steel production process comprises a steel ladle, a tundish and a crystallizer; the steel ladle and the tundish are communicated with each other through a first flow guide pipe, the tundish and the crystallizer are communicated with each other through a second flow guide pipe, the wire feeder conveys rare earth magnesium wires to the tundish through a first conveying pipe and a second conveying pipe, and the rare earth magnesium wires penetrate through covering slag on the liquid level of the tundish and enter the molten steel;
the method is characterized in that:
the bottom of the crystallizer is also communicated with a sampling detection pipe, and the sampling detection port is a normally closed port;
the second conveying pipe and the first conveying pipe are provided with a plurality of groups, and the number of the groups can be adjusted;
the second conveying pipe is hinged with the first conveying pipe, the first conveying pipe is horizontally arranged, and the angle of the second conveying pipe relative to the first conveying pipe can be adjusted;
the controller is connected with a wire feeder and judges according to the sampling detection result of the sampling detection pipe, and correspondingly adjusts the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe;
when the sampling detection result does not exceed a first preset threshold range, adjusting the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe simultaneously;
when the sampling detection result exceeds a first preset threshold range but does not exceed a second preset threshold range, only adjusting any one of the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe;
and when the sampling detection result exceeds a second preset threshold range, reversely adjusting one corresponding item of the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe.
As a further preferable embodiment of the present invention, the first preset threshold range is a range of content of carbide in the molten steel; the second preset threshold range is the content range of the non-metal oxides and the non-metal sulfides in the molten steel.
As a further preferable embodiment of the present invention, the controller is internally provided with a priority level unit by which the number of settings of the second transport pipe and the first transport pipe, the wire feeding speed of the wire feeder, and the priority of the angular adjustment of the second transport pipe with respect to the first transport pipe are controlled.
As a further preferred embodiment of the present invention, after the setting number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder, and the priority of the angle adjustment of the second conveying pipe relative to the first conveying pipe are preset by the priority unit, the priority unit can adjust the setting number, the wire feeding speed, and the priority according to actual needs.
As a further preferred embodiment of the present invention, the preset adjusted priority levels in the priority level unit are: the priority of the adjustment of the setting quantity of the second conveying pipe and the first conveying pipe is higher than the priority of the adjustment of the wire feeding speed of the wire feeder, and the priority of the adjustment of the wire feeding speed of the wire feeder is higher than the priority of the adjustment of the angle of the second conveying pipe relative to the first conveying pipe.
As a further preferable embodiment of the present invention, the second delivery pipe and the first delivery pipe are provided with a plurality of sets; and the multiple groups of second conveying pipes and the first conveying pipes comprise multiple groups with the same inner diameter and multiple groups with different inner diameters.
As a further preferable embodiment of the present invention, the adjustment priority of the plurality of sets of second delivery pipes having the same inner diameter and the first delivery pipe is higher than the adjustment priority of the plurality of sets of second delivery pipes having different inner diameters and the first delivery pipe.
In a further preferred embodiment of the present invention, an angle adjustment range of the second transport pipe with respect to the first transport pipe is greater than 0 degrees and equal to or less than 90 degrees.
As a further preferred embodiment of the invention, when the wire feeding speed of the wire feeder is adjusted, the wire feeding speeds of a plurality of groups of second conveying pipes and first conveying pipes are synchronously adjusted; or when the wire feeding speed of the wire feeder is adjusted, the wire feeding speed of each group of the second conveying pipes and the first conveying pipes is independently adjusted.
As a further preferred embodiment of the present invention, the present invention also provides a rare earth magnesium feeding control method for a high speed steel production process, characterized in that: the method comprises the following steps:
1) molten steel for preparing high-speed steel flows into a tundish from a steel ladle through a first flow guide pipe and then flows into a crystallizer through a second flow guide pipe, rare earth magnesium wires are introduced into the tundish from a wire feeder through a first conveying pipe and a second conveying pipe at an initial speed, the rare earth magnesium wires penetrate covering slag on the molten steel surface of the tundish and enter the molten steel, and the rare earth magnesium wires enter the crystallizer along with the molten steel after being melted to fully react with impurities such as oxygen, sulfur and the like in the molten steel and impurities;
2) periodically sampling and detecting the molten steel after the rare earth magnesium wire is melted through a sampling and detecting tube;
3) the controller judges according to the sampling detection result of the sampling detection tube and correspondingly adjusts the set number of the second conveying tube and the first conveying tube, the wire feeding speed of the wire feeder and the angle of the second conveying tube relative to the first conveying tube;
when the sampling detection result does not exceed the range of a first preset threshold value, adjusting the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe simultaneously;
when the sampling detection result exceeds a first preset threshold range but does not exceed a second preset threshold range, only adjusting any one of the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe;
and when the sampling detection result exceeds a second preset threshold range, reversely adjusting one corresponding item of the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe.
Compared with the prior art, the invention can realize the following beneficial effects:
(1) the invention provides a rare earth magnesium feeding control system and a method for a high-speed steel production process, wherein a sampling detection pipe is communicated with the bottom of a crystallizer, and a plurality of groups of second conveying pipes and first conveying pipes are arranged; the angle of the second conveying pipe relative to the first conveying pipe can be adjusted; judging by the controller according to the sampling detection result of the sampling detection pipe so as to correspondingly adjust the set number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the angle of the second conveying pipe relative to the first conveying pipe; therefore, the number of wire feeding, the wire feeding angle and the wire feeding speed are respectively and correspondingly adjusted according to different sampling detection results, the improvement of the solidification structure and the mechanical property of the high-speed steel is realized, and meanwhile, the conditions that the work efficiency is influenced by too low adjustment speed and the like possibly existing in a single adjustment mode and the performance is not improved due to too high adjustment speed are avoided; meanwhile, various adjusting modes can also provide reference and basis for the feeding control of the rare earth magnesium in the later high-speed steel preparation process with different requirements.
(2) The invention provides a rare earth magnesium feeding control system and a method for a high-speed steel production process, the priority level unit controls the setting number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the priority level of the angle adjustment of the second conveying pipe relative to the first conveying pipe, and after the setting number of the second conveying pipe and the first conveying pipe, the wire feeding speed of the wire feeder and the priority of the angle adjustment of the second conveying pipe relative to the first conveying pipe are preset by the priority unit, the adjustment can be carried out through the priority unit according to the actual requirement, thereby aiming at the preparation process of high-speed steel with different types and requirements, providing a priority adjusting mode suitable for the high-speed steel by adjusting the priority, meanwhile, an operable space is provided for the optimization and perfection of the rare earth magnesium feeding control system and method in the high-speed steel production process.
Drawings
FIG. 1 is a schematic structural diagram of a rare earth magnesium feeding control system for a high-speed steel production process according to the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
[ example 1]
As shown in fig. 1, a rare earth magnesium feeding control system for a high-speed steel production process provided in embodiment 1 of the present invention comprises a steel ladle 1, a tundish 2, and a crystallizer 3; the steel ladle 1 is communicated with the tundish 2 through a first flow guide pipe 4, the tundish 2 is communicated with the crystallizer 3 through a second flow guide pipe 5, the wire feeder 6 conveys rare earth magnesium wires 10 to the tundish 2 through a first conveying pipe 8 and a second conveying pipe 9, and the rare earth magnesium wires 10 penetrate through covering slag 21 on the molten steel surface of the tundish 2 and enter molten steel 22;
the bottom of the crystallizer 3 is also communicated with a sampling detection pipe 31, and a sampling detection port is a normally closed port; therefore, the sampling detection pipe 31 is opened only in the sampling detection time, and the unexpected leakage of the molten steel in the crystallizer 3 is avoided;
a plurality of groups of adjustable second conveying pipes 9 and first conveying pipes 8 are arranged; the adjustment of the feeding quantity of the rare earth magnesium wires in the proportion of the molten steel can be quickly realized through the adjustment of the setting quantities of the second conveying pipe 9 and the first conveying pipe 8; as a preference of the present embodiment, a plurality of sets of the second conveying pipe 9 and the first conveying pipe 8 are provided; and the multiple groups of second conveying pipes 9 and the first conveying pipes 8 comprise multiple groups with the same inner diameter and multiple groups with different inner diameters, the influence of the feeding quantity of the rare earth magnesium on the sampling detection result can be known through the quantity adjustment of the multiple groups of second conveying pipes 9 and the first conveying pipes 8 with the same inner diameter, and the influence of the cross-sectional area when the rare earth magnesium is fed on the sampling detection result can be known through the quantity adjustment of the multiple groups of second conveying pipes 9 and the first conveying pipes 8 with different inner diameters.
In the present embodiment, as a further preference, the adjustment priorities of the plurality of sets of second delivery pipes 9 and first delivery pipes 8 having the same inner diameter are higher than the adjustment priorities of the plurality of sets of second delivery pipes 9 and first delivery pipes 8 having different inner diameters; because the influence of the change of the rare earth magnesium feeding quantity on the sampling detection result is more obvious under the normal condition, the change of the rare earth magnesium feeding quantity can be more convenient to obtain the solidification structure of the high-speed steel and improve the mechanical property.
The second conveying pipe 9 is hinged with the first conveying pipe 8, the first conveying pipe 8 is horizontally arranged, and the angle of the second conveying pipe 9 relative to the first conveying pipe 8 can be adjusted; in the present embodiment, the angle adjustment range of the second delivery pipe 9 with respect to the first delivery pipe 8 is greater than 0 degree and equal to or less than 90 degrees; the reason is that the second delivery pipe 9 is parallel to the first delivery pipe 8 when the angle is adjusted to be 0 degree, so the rare earth magnesium wires are not contacted with the molten steel, and the second delivery pipe 9 is vertical to the first delivery pipe 8 when the angle is adjusted to be 90 degrees, so the rare earth magnesium wires vertically extend into the molten steel and are contacted with the molten steel for reaction.
The outstanding contribution of the embodiment to the prior art is as follows:
the device also comprises a controller 7, wherein the controller 7 is connected with the wire feeder 6, the controller 7 judges according to the sampling detection result of the sampling detection pipe 31, and correspondingly adjusts the setting number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8; in this embodiment, the first preset threshold range is a content range of carbides in the molten steel; the second preset threshold range is the content range of the non-metal oxides and the non-metal sulfides in the molten steel.
When the sampling detection result does not exceed the first preset threshold range, the content of carbide in the sampling detection result is higher, which is not beneficial to improving the solidification structure and the mechanical property of the high-speed steel, so that the setting number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8 need to be adjusted simultaneously; the carbide content in the sampling detection result is reduced as fast as possible, so that the fact that the sampling detection result is not lower than the carbide content range in the molten steel is actually meant when the sampling detection result does not exceed the first preset threshold range.
When the sampling detection result exceeds the first preset threshold range but does not exceed the second preset threshold range, the content of carbide in the sampling detection result is reduced and is lower than the content range of carbide in molten steel, and the content of non-metal oxide and non-metal sulfide is not exceeded, so that the adjusting speed can be properly reduced at the moment, and only any one of the set number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8 is adjusted; therefore, when the sampling detection result does not exceed the second preset threshold range, the sampling detection result is actually not higher than the content range of the non-metal oxide and the non-metal sulfide in the molten steel.
When the sampling detection result exceeds the second preset threshold range, the content of the non-metal oxides and the non-metal sulfides in the sampling detection result exceeds the content range, so that the corresponding item in the set number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8 needs to be reversely adjusted, and the content of the non-metal oxides and the non-metal sulfides in the sampling detection result is restored to be within the preset range.
As a further preference of the present embodiment, the controller 7 is internally provided with a priority level unit by which the number of settings of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6, and the priority of the angle adjustment of the second conveying pipe 9 with respect to the first conveying pipe 8 are controlled; after the setting number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the priority of the angle adjustment of the second conveying pipe 9 relative to the first conveying pipe 8 are preset by the priority unit, the adjustment can be carried out through the priority unit according to the actual requirement; therefore, aiming at the high-speed steel preparation process with different types and requirements, a priority adjusting mode suitable for the high-speed steel preparation process can be provided by adjusting the priority, and an operable space is provided for the optimization and perfection of a rare earth magnesium feeding control system and a method in the high-speed steel production process. Preferably, the preset adjusted priority levels in the priority level unit are: the priority of the setting quantity adjustment of the second conveying pipe 9 and the first conveying pipe 8 is higher than the priority of the wire feeding speed adjustment of the wire feeder 6, and the priority of the wire feeding speed adjustment of the wire feeder 6 is higher than the priority of the angle adjustment of the second conveying pipe 9 relative to the first conveying pipe 8; this is because, under normal conditions, the influence of the number of wire feeds on the solidification structure and mechanical properties of the high-speed steel is higher than the influence of the wire feed speed on the solidification structure and mechanical properties of the high-speed steel, and the influence of the wire feed speed on the solidification structure and mechanical properties of the high-speed steel is higher than the influence of the wire feed angle on the solidification structure and mechanical properties of the high-speed steel.
As another preferred embodiment of the present embodiment, when the wire feeding speed of the wire feeder 6 is adjusted, the wire feeding speeds of the plurality of sets of the second conveying pipes 9 and the first conveying pipe 8 can be adjusted synchronously; or when the wire feeding speed of the wire feeder 6 is adjusted, the wire feeding speed of each group of the second conveying pipes 9 and the first conveying pipe 8 is independently adjusted, and the influence of the wire feeding position on the solidification structure and the mechanical property of the high-speed steel can be further determined by independently adjusting the wire feeding speed of each group of the second conveying pipes 9 and the first conveying pipes 8, so that more references and bases are provided for the feeding control of rare earth magnesium in the later high-speed steel preparation process with different requirements.
[ example 2]
The embodiment 2 of the invention also provides a rare earth magnesium feeding control method for the high-speed steel production process, which is characterized by comprising the following steps: the method comprises the following steps:
1) molten steel for preparing high-speed steel flows into a tundish 2 from a steel ladle 1 through a first flow guide pipe 4 and then flows into a crystallizer 3 through a second flow guide pipe 5, a rare earth magnesium wire 10 is introduced into the tundish 2 through a wire feeder 6 through a first conveying pipe 8 and a second conveying pipe 9 according to the initial speed, the rare earth magnesium wire 10 penetrates through covering slag on the molten steel surface of the tundish 2 and enters the interior of the molten steel, and the molten rare earth magnesium wire enters the crystallizer along with the molten steel after being melted and fully reacts with impurities such as oxygen, sulfur and the like and impurities in the molten steel;
2) the molten steel after the rare earth magnesium wire is melted is periodically sampled and detected through a sampling detection tube 31;
3) the controller 7 judges according to the sampling detection result of the sampling detection pipe 31, and correspondingly adjusts the setting number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8;
3.1) when the sampling detection result does not exceed the first preset threshold range, simultaneously adjusting the set number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8;
3.2) when the sampling detection result exceeds the first preset threshold range but does not exceed the second preset threshold range, only adjusting any one of the set number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8;
3.3) when the sampling detection result exceeds the second preset threshold range, reversely adjusting one corresponding item of the set number of the second conveying pipe 9 and the first conveying pipe 8, the wire feeding speed of the wire feeder 6 and the angle of the second conveying pipe 9 relative to the first conveying pipe 8.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A rare earth magnesium feeding control system for a high-speed steel production process comprises a steel ladle (1), a tundish (2) and a crystallizer (3); the ladle (1) and the tundish (2) are communicated with each other through a first guide pipe (4), the tundish (2) and the crystallizer (3) are communicated with each other through a second guide pipe (5), a wire feeder (6) conveys rare earth magnesium wires (10) to the tundish (2) through a first conveying pipe (8) and a second conveying pipe (9), and the rare earth magnesium wires (10) penetrate through covering slag (21) on the molten steel surface of the tundish (2) and enter molten steel (22);
the method is characterized in that:
the bottom of the crystallizer (3) is also communicated with a sampling detection pipe (31), and a sampling detection port is a normally closed port;
the second conveying pipe (9) and the first conveying pipe (8) are provided with a plurality of groups, and the number of the groups can be adjusted;
the second conveying pipe (9) is hinged with the first conveying pipe (8), the first conveying pipe (8) is horizontally arranged, and the angle of the second conveying pipe (9) relative to the first conveying pipe (8) can be adjusted;
the wire feeder is characterized by further comprising a controller (7), wherein the controller (7) is connected with a wire feeder (6), the controller (7) judges according to the sampling detection result of the sampling detection pipe (31), and correspondingly adjusts the set number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8);
when the sampling detection result does not exceed the range of a first preset threshold value, adjusting the set number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8) simultaneously;
when the sampling detection result exceeds a first preset threshold range but does not exceed a second preset threshold range, only adjusting any one of the set number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8);
and when the sampling detection result exceeds a second preset threshold range, reversely adjusting corresponding one of the set number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8).
2. A rare earth magnesium feeding system for a high speed steel production process according to claim 1, wherein: the first preset threshold range is the content range of carbide in the molten steel; the second preset threshold range is the content range of the non-metal oxides and the non-metal sulfides in the molten steel.
3. A rare earth magnesium feeding system for a high speed steel production process according to claim 1, wherein: the controller (7) is internally provided with a priority level unit, and the priority level unit is used for controlling the setting number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the priority level of the angle adjustment of the second conveying pipe (9) relative to the first conveying pipe (8).
4. A rare earth magnesium feeding system for a high speed steel production process according to claim 3, wherein: the second conveying pipe (9) and the first conveying pipe (8) are arranged in quantity, the wire feeding speed of the wire feeder (6) and the priority of the second conveying pipe (9) relative to the angle adjustment of the first conveying pipe (8) are preset through the priority unit, and then the adjustment can be carried out through the priority unit according to actual needs.
5. A rare earth magnesium feeding system for a high speed steel production process according to claim 3, wherein: the preset adjusted priority levels in the priority level unit are as follows: the priority of the adjustment of the set quantity of the second conveying pipe (9) and the first conveying pipe (8) is higher than the priority of the adjustment of the wire feeding speed of the wire feeder (6), and the priority of the adjustment of the wire feeding speed of the wire feeder (6) is higher than the priority of the adjustment of the angle of the second conveying pipe (9) relative to the first conveying pipe (8).
6. A rare earth magnesium feeding system for a high speed steel production process according to claim 1, wherein: a plurality of groups of the second conveying pipes (9) and the first conveying pipes (8) are arranged; and the multiple groups of second conveying pipes (9) and the first conveying pipes (8) comprise multiple groups with the same inner diameter and multiple groups with different inner diameters.
7. A rare earth magnesium feeding system for a high speed steel production process according to claim 6, wherein: the adjustment priority of the groups of second conveying pipes (9) and first conveying pipes (8) with the same inner diameter is higher than that of the groups of second conveying pipes (9) and first conveying pipes (8) with different inner diameters.
8. A rare earth magnesium feeding system for a high speed steel production process according to claim 1, wherein: the angle adjusting range of the second conveying pipe (9) relative to the first conveying pipe (8) is larger than 0 degree and smaller than or equal to 90 degrees.
9. A rare earth magnesium feeding system for a high speed steel production process according to claim 1, wherein: when the wire feeding speed of the wire feeder (6) is adjusted, the wire feeding speeds of a plurality of groups of second conveying pipes (9) and first conveying pipes (8) are synchronously adjusted; or when the wire feeding speed of the wire feeder (6) is adjusted, the wire feeding speed of each group of the second conveying pipe (9) and the first conveying pipe (8) is independently adjusted.
10. A rare earth magnesium feeding control method for a high-speed steel production process is characterized by comprising the following steps: the method comprises the following steps:
1) molten steel for preparing high-speed steel flows into a tundish (2) from a steel ladle (1) through a first flow guide pipe (4), then flows into a crystallizer (3) through a second flow guide pipe (5), rare earth magnesium wires (10) are introduced into the tundish (2) through a first conveying pipe (8) and a second conveying pipe (9) by a wire feeding machine (6) according to the initial speed, the rare earth magnesium wires (10) penetrate covering slag on the molten steel surface of the tundish (2) and enter the molten steel, and the rare earth magnesium wires enter the crystallizer along with the molten steel after being melted to fully react with impurities such as oxygen, sulfur and the like and impurities in the molten steel;
2) the molten steel after the rare earth magnesium wire is melted is periodically sampled and detected through a sampling detection tube (31);
3) the controller (7) judges according to the sampling detection result of the sampling detection pipe (31), and correspondingly adjusts the setting number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8);
when the sampling detection result does not exceed the range of a first preset threshold value, adjusting the set number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8) simultaneously;
when the sampling detection result exceeds a first preset threshold range but does not exceed a second preset threshold range, only adjusting any one of the set number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8);
and when the sampling detection result exceeds a second preset threshold range, reversely adjusting corresponding one of the set number of the second conveying pipe (9) and the first conveying pipe (8), the wire feeding speed of the wire feeder (6) and the angle of the second conveying pipe (9) relative to the first conveying pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135773.5A CN114606361B (en) | 2022-02-14 | 2022-02-14 | Rare earth magnesium feeding control system and method for high-speed steel production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135773.5A CN114606361B (en) | 2022-02-14 | 2022-02-14 | Rare earth magnesium feeding control system and method for high-speed steel production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114606361A true CN114606361A (en) | 2022-06-10 |
| CN114606361B CN114606361B (en) | 2023-01-31 |
Family
ID=81859725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210135773.5A Active CN114606361B (en) | 2022-02-14 | 2022-02-14 | Rare earth magnesium feeding control system and method for high-speed steel production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114606361B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363439A (en) * | 2001-07-20 | 2002-08-14 | 南京理工大学 | Conticasting technology for feeding rare-earth wires into tundish |
| CN101451211A (en) * | 2007-12-07 | 2009-06-10 | 江苏沙钢集团有限公司 | Method for smelting tire cord steel by electric arc |
| CN102019381A (en) * | 2010-12-07 | 2011-04-20 | 包头市神润高新材料股份有限公司 | Rare earth treatment method of continuously cast 20 steel crack-free tube blank |
| CN202717795U (en) * | 2012-03-16 | 2013-02-06 | 内蒙古包钢钢联股份有限公司 | Novel wire feeding machine |
| WO2013131213A1 (en) * | 2012-03-08 | 2013-09-12 | 宝山钢铁股份有限公司 | Non-oriented electrical steel sheet with fine magnetic performance, and calcium treatment method therefor |
-
2022
- 2022-02-14 CN CN202210135773.5A patent/CN114606361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363439A (en) * | 2001-07-20 | 2002-08-14 | 南京理工大学 | Conticasting technology for feeding rare-earth wires into tundish |
| CN101451211A (en) * | 2007-12-07 | 2009-06-10 | 江苏沙钢集团有限公司 | Method for smelting tire cord steel by electric arc |
| CN102019381A (en) * | 2010-12-07 | 2011-04-20 | 包头市神润高新材料股份有限公司 | Rare earth treatment method of continuously cast 20 steel crack-free tube blank |
| WO2013131213A1 (en) * | 2012-03-08 | 2013-09-12 | 宝山钢铁股份有限公司 | Non-oriented electrical steel sheet with fine magnetic performance, and calcium treatment method therefor |
| CN202717795U (en) * | 2012-03-16 | 2013-02-06 | 内蒙古包钢钢联股份有限公司 | Novel wire feeding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114606361B (en) | 2023-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5690733A (en) | Method for recharging of silicon granules in a Czochralski single crystal growing operation | |
| CN105133010B (en) | A kind of single crystal growing furnace composite feeding-material device | |
| CN114606361B (en) | Rare earth magnesium feeding control system and method for high-speed steel production process | |
| CN111822689A (en) | High-quality steel continuous casting argon blowing stopper rod, stopper rod argon blowing system and argon blowing method | |
| CN1020767C (en) | Method and apparatus for manufacturing silicon single crystals | |
| US10618112B2 (en) | Granulation of molten material | |
| KR101353166B1 (en) | Material segregation apparatus for blast furnace top bunker | |
| WO2021134950A1 (en) | Feed method for electroslag remelting furnace | |
| CN112296287A (en) | High-carbon steel inclusion control method | |
| AU674749B2 (en) | Feeding system for a continuous casting unit for aluminium | |
| CN106312005B (en) | A kind of wire feeder | |
| CN1128029C (en) | Conticasting technology for feeding rare-earth wires into tundish | |
| US5876495A (en) | Method of pulling semiconductor single crystals | |
| CN219745094U (en) | Adjustable feed mechanism of impact crusher | |
| CN102337377A (en) | Molten steel wire feeding device and wire feeding method | |
| CN107739770A (en) | One kind reduces ultra-low-carbon steel strand rimhole method | |
| CN202214380U (en) | Molten steel wire feeding device | |
| CN105173777B (en) | A kind of feed process of the flush system container of electrodeless variable-speed | |
| WO2021134948A1 (en) | Wire feeding device and electroslag furnace having same | |
| CN203890384U (en) | Top-blown argon lance device with wire feeding and guiding function | |
| EP0244255A1 (en) | Continuous production of alloys | |
| CN115490440B (en) | Operation method for calcining limestone with large particle size ratio | |
| CN213894442U (en) | Buggy pay-off current stabilizer | |
| JPS6217141A (en) | Grain refining method for eutectic si of al-si alloy | |
| CN213120053U (en) | Adjustable feeding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |